Founded in 1988, The Siouxland Initiative (TSI) is a private sector, not-for-profit regional economic development organization focused on increasing and enhancing employment opportunities in the tri-state region of Iowa, Nebraska, and South Dakota.

The Siouxland Chamber of Commerce serves the tri-state region including the cities of Sioux City, Sergeant Bluff and LeMars, Iowa; South Sioux City and Dakota City, Nebraska; and North Sioux City and Dakota Dunes, South Dakota by promoting economic development and quality of life for the region.